RDMA/rtrs: Remove unnecessary argument dir of rtrs_iu_free

[ Upstream commit 8bd372ace32ec88fe3ad1421929ae1604f2a2c2c ]

The direction of DMA operation is already in the rtrs_iu

Link: https://lore.kernel.org/r/20201023074353.21946-8-jinpu.wang@cloud.ionos.com
Signed-off-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
4 files changed